/* Copyright (C) 2011 Circuits At Home, LTD. All rights reserved. This software may be distributed and modified under the terms of the GNU General Public License version 2 (GPL2) as published by the Free Software Foundation and appearing in the file GPL2.TXT included in the packaging of this file. Please note that GPL2 Section 2[b] requires that all works based on this software must also be made publicly available under the terms of the GPL2 ("Copyleft"). Contact information ------------------- Circuits At Home, LTD Web : http://www.circuitsathome.com e-mail : support@circuitsathome.com */ #if !defined(__USBHUB_H__) #define __USBHUB_H__ #include "Usb.h" #define USB_DESCRIPTOR_HUB 0x09 // Hub descriptor type // Hub Requests #define bmREQ_CLEAR_HUB_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE #define bmREQ_CLEAR_PORT_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER #define bmREQ_CLEAR_TT_BUFFER USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER #define bmREQ_GET_HUB_DESCRIPTOR USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE #define bmREQ_GET_HUB_STATUS USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE #define bmREQ_GET_PORT_STATUS USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER #define bmREQ_RESET_TT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER #define bmREQ_SET_HUB_DESCRIPTOR USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE #define bmREQ_SET_HUB_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_DEVICE #define bmREQ_SET_PORT_FEATURE USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER #define bmREQ_GET_TT_STATE USB_SETUP_DEVICE_TO_HOST|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER #define bmREQ_STOP_TT USB_SETUP_HOST_TO_DEVICE|USB_SETUP_TYPE_CLASS|USB_SETUP_RECIPIENT_OTHER // Hub Class Requests #define HUB_REQUEST_CLEAR_TT_BUFFER 8 #define HUB_REQUEST_RESET_TT 9 #define HUB_REQUEST_GET_TT_STATE 10 #define HUB_REQUEST_STOP_TT 11 // Hub Features #define HUB_FEATURE_C_HUB_LOCAL_POWER 0 #define HUB_FEATURE_C_HUB_OVER_CURRENT 1 #define HUB_FEATURE_PORT_CONNECTION 0 #define HUB_FEATURE_PORT_ENABLE 1 #define HUB_FEATURE_PORT_SUSPEND 2 #define HUB_FEATURE_PORT_OVER_CURRENT 3 #define HUB_FEATURE_PORT_RESET 4 #define HUB_FEATURE_PORT_POWER 8 #define HUB_FEATURE_PORT_LOW_SPEED 9 #define HUB_FEATURE_C_PORT_CONNECTION 16 #define HUB_FEATURE_C_PORT_ENABLE 17 #define HUB_FEATURE_C_PORT_SUSPEND 18 #define HUB_FEATURE_C_PORT_OVER_CURRENT 19 #define HUB_FEATURE_C_PORT_RESET 20 #define HUB_FEATURE_PORT_TEST 21 #define HUB_FEATURE_PORT_INDICATOR 22 // Hub Port Test Modes #define HUB_PORT_TEST_MODE_J 1 #define HUB_PORT_TEST_MODE_K 2 #define HUB_PORT_TEST_MODE_SE0_NAK 3 #define HUB_PORT_TEST_MODE_PACKET 4 #define HUB_PORT_TEST_MODE_FORCE_ENABLE 5 // Hub Port Indicator Color #define HUB_PORT_INDICATOR_AUTO 0 #define HUB_PORT_INDICATOR_AMBER 1 #define HUB_PORT_INDICATOR_GREEN 2 #define HUB_PORT_INDICATOR_OFF 3 // Hub Port Status Bitmasks #define bmHUB_PORT_STATUS_PORT_CONNECTION 0x0001 #define bmHUB_PORT_STATUS_PORT_ENABLE 0x0002 #define bmHUB_PORT_STATUS_PORT_SUSPEND 0x0004 #define bmHUB_PORT_STATUS_PORT_OVER_CURRENT 0x0008 #define bmHUB_PORT_STATUS_PORT_RESET 0x0010 #define bmHUB_PORT_STATUS_PORT_POWER 0x0100 #define bmHUB_PORT_STATUS_PORT_LOW_SPEED 0x0200 #define bmHUB_PORT_STATUS_PORT_HIGH_SPEED 0x0400 #define bmHUB_PORT_STATUS_PORT_TEST 0x0800 #define bmHUB_PORT_STATUS_PORT_INDICATOR 0x1000 // Hub Port Status Change Bitmasks (used one byte instead of two) #define bmHUB_PORT_STATUS_C_PORT_CONNECTION 0x0001 #define bmHUB_PORT_STATUS_C_PORT_ENABLE 0x0002 #define bmHUB_PORT_STATUS_C_PORT_SUSPEND 0x0004 #define bmHUB_PORT_STATUS_C_PORT_OVER_CURRENT 0x0008 #define bmHUB_PORT_STATUS_C_PORT_RESET 0x0010 // Hub Status Bitmasks (used one byte instead of two) #define bmHUB_STATUS_LOCAL_POWER_SOURCE 0x01 #define bmHUB_STATUS_OVER_CURRENT 0x12 // Hub Status Change Bitmasks (used one byte instead of two) #define bmHUB_STATUS_C_LOCAL_POWER_SOURCE 0x01 #define bmHUB_STATUS_C_OVER_CURRENT 0x12 // Hub Port Configuring Substates #define USB_STATE_HUB_PORT_CONFIGURING 0xb0 #define USB_STATE_HUB_PORT_POWERED_OFF 0xb1 #define USB_STATE_HUB_PORT_WAIT_FOR_POWER_GOOD 0xb2 #define USB_STATE_HUB_PORT_DISCONNECTED 0xb3 #define USB_STATE_HUB_PORT_DISABLED 0xb4 #define USB_STATE_HUB_PORT_RESETTING 0xb5 #define USB_STATE_HUB_PORT_ENABLED 0xb6 // Additional Error Codes #define HUB_ERROR_PORT_HAS_BEEN_RESET 0xb1 // The bit mask to check for all necessary state bits #define bmHUB_PORT_STATUS_ALL_MAIN ((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION | bmHUB_PORT_STATUS_C_PORT_ENABLE | bmHUB_PORT_STATUS_C_PORT_SUSPEND | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_SUSPEND) // Bit mask to check for DISABLED state in HubEvent::bmStatus field #define bmHUB_PORT_STATE_CHECK_DISABLED (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_SUSPEND) // Hub Port States #define bmHUB_PORT_STATE_DISABLED (0x0000 | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION) // Hub Port Events #define bmHUB_PORT_EVENT_CONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION) #define bmHUB_PORT_EVENT_DISCONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER) #define bmHUB_PORT_EVENT_RESET_COMPLETE (((0UL | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION) #define bmHUB_PORT_EVENT_LS_CONNECT (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED) #define bmHUB_PORT_EVENT_LS_RESET_COMPLETE (((0UL | bmHUB_PORT_STATUS_C_PORT_RESET) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED) #define bmHUB_PORT_EVENT_LS_PORT_ENABLED (((0UL | bmHUB_PORT_STATUS_C_PORT_CONNECTION | bmHUB_PORT_STATUS_C_PORT_ENABLE) << 16) | bmHUB_PORT_STATUS_PORT_POWER | bmHUB_PORT_STATUS_PORT_ENABLE | bmHUB_PORT_STATUS_PORT_CONNECTION | bmHUB_PORT_STATUS_PORT_LOW_SPEED) struct HubDescriptor { uint8_t bDescLength; // descriptor length uint8_t bDescriptorType; // descriptor type uint8_t bNbrPorts; // number of ports a hub equiped with struct { uint16_t LogPwrSwitchMode : 2; uint16_t CompoundDevice : 1; uint16_t OverCurrentProtectMode : 2; uint16_t TTThinkTime : 2; uint16_t PortIndicatorsSupported : 1; uint16_t Reserved : 8; } __attribute__((packed)); uint8_t bPwrOn2PwrGood; uint8_t bHubContrCurrent; } __attribute__((packed)); struct HubEvent { union { struct { uint16_t bmStatus; // port status bits uint16_t bmChange; // port status change bits } __attribute__((packed)); uint32_t bmEvent; uint8_t evtBuff[4]; }; } __attribute__((packed)); class USBHub : USBDeviceConfig { static bool bResetInitiated; // True when reset is triggered USBHost *pUsb; // USBHost class instance pointer EpInfo epInfo[2]; // interrupt endpoint info structure uint8_t bAddress; // address uint8_t bNbrPorts; // number of ports // uint8_t bInitState; // initialization state variable uint32_t qNextPollTime; // next poll time bool bPollEnable; // poll enable flag uint8_t CheckHubStatus(); uint8_t PortStatusChange(uint8_t port, HubEvent &evt); public: USBHub(USBHost *p); uint8_t ClearHubFeature(uint8_t fid); uint8_t ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0); uint8_t GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr); uint8_t GetHubStatus(uint16_t nbytes, uint8_t* dataptr); uint8_t GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr); uint8_t SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr); uint8_t SetHubFeature(uint8_t fid); uint8_t SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel = 0); void PrintHubStatus(); uint8_t Init(uint8_t parent, uint8_t port, bool lowspeed); uint8_t Release(); uint8_t Poll(); void ResetHubPort(uint8_t port); virtual uint8_t GetAddress() { return bAddress; }; virtual bool DEVCLASSOK(uint8_t klass) { return (klass == 0x09); } }; // Clear Hub Feature inline uint8_t USBHub::ClearHubFeature(uint8_t fid) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_HUB_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, 0, 0, 0, NULL, NULL)); } // Clear Port Feature inline uint8_t USBHub::ClearPortFeature(uint8_t fid, uint8_t port, uint8_t sel) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_CLEAR_PORT_FEATURE, USB_REQUEST_CLEAR_FEATURE, fid, 0, ((0x0000 | port) | (sel << 8)), 0, 0, NULL, NULL)); } // Get Hub Descriptor inline uint8_t USBHub::GetHubDescriptor(uint8_t index, uint16_t nbytes, uint8_t *dataptr) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_DESCRIPTOR, USB_REQUEST_GET_DESCRIPTOR, index, 0x29, 0, nbytes, nbytes, dataptr, NULL)); } // Get Hub Status inline uint8_t USBHub::GetHubStatus(uint16_t nbytes, uint8_t* dataptr) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_HUB_STATUS, USB_REQUEST_GET_STATUS, 0, 0, 0x0000, nbytes, nbytes, dataptr, NULL)); } // Get Port Status inline uint8_t USBHub::GetPortStatus(uint8_t port, uint16_t nbytes, uint8_t* dataptr) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_GET_PORT_STATUS, USB_REQUEST_GET_STATUS, 0, 0, port, nbytes, nbytes, dataptr, NULL)); } // Set Hub Descriptor inline uint8_t USBHub::SetHubDescriptor(uint8_t port, uint16_t nbytes, uint8_t* dataptr) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_DESCRIPTOR, USB_REQUEST_SET_DESCRIPTOR, 0, 0, port, nbytes, nbytes, dataptr, NULL)); } // Set Hub Feature inline uint8_t USBHub::SetHubFeature(uint8_t fid) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_HUB_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, 0, 0, 0, NULL, NULL)); } // Set Port Feature inline uint8_t USBHub::SetPortFeature(uint8_t fid, uint8_t port, uint8_t sel) { return ( pUsb->ctrlReq(bAddress, 0, bmREQ_SET_PORT_FEATURE, USB_REQUEST_SET_FEATURE, fid, 0, (((0x0000 | sel) << 8) | port), 0, 0, NULL, NULL)); } void PrintHubPortStatus(USBHost *usbptr, uint8_t addr, uint8_t port, bool print_changes = false); #endif // __USBHUB_H__